BRENAB
up->curregs[R14] = BRENAB;
write_zsreg(channel, R14, regs[R14] & ~BRENAB);
up->curregs[R14] = BRENAB;
write_zsreg(uap, R14, regs[R14] & ~BRENAB);
write_zsreg(uap, 14, (LOOPBAK | BRSRC | BRENAB));
uap->curregs[R14] = BRENAB;
uap->curregs[R14] = BRENAB;
up->curregs[R14] = BRSRC | BRENAB;
write_zsreg(channel, R14, regs[R14] & ~BRENAB);
up->curregs[R14] = BRSRC | BRENAB;